Adjustable stand for show-windows



(No Model.)

- O. H. GRUENHAGEN.

ADJUSTABLE STAND FOR SHOW WINDOWS.

Patented Nov 29, 1892.

Nrrno STATES I PATENT OFFICE.

CHARLES H. GRUENHAGEN, OF SAN FRANCISCO, CALIFORNIA.

ADJUSTABLE STAND FOR SHOW-WINDOWS.

SPECIFICATION forming part of Letters Patent No. 486,981, dated November 29, 1892. Application filed February 23 1892- Serial No. 422,523- (No model.)

To aZZwhom it may concern.-

Be itknown that 1, CHARLES H. GRUENHA- GEN, a citizen of the United States, residing adjusting the racks or brackets on the standards at any required angle.

The objects of my invention are to economize space and produce a light and strong stand, and one in which the brackets are prevented from sagging or horizontal movement when once set in position on the standards. I accomplish these objects by the means illustrated in the accompanying drawings, which form part of this specification, and in which-- Figure 1 is a side view of the bracket and clamp. Fig. 2 is a longitudinal section of the clamp. Fig. 3 is a side View of the clamp on an enlarged scale. Fig. 4 is a horizontal crosssection through the center. Fig. 5 is a view on an enlarged scale of the knuckle end of the bracket. Fig. 6 is a top view of Fig. 5. Fig. 7 is a perspective view of the springcatch. Fig. 8 is a side view of the clamp with two sockets for a swinging bracket. Fig. 9 is a cross-section on an enlarged scale through the clamp.

A is a vertical hollow stand-pipe to receive the clamps B B. Two of these pipes are connected to any suitable base (not shown) to form the stand complete. Each of these stand-pipes A are provided with one or more spring-clamps having outwardlyextending leaves with serrated or toothed edges D similar to theteeth of a saw, andascreW-threaded nipple E is formed upon one leaf, in which a thumb-screw D operates, both leaves being pierced, as shown.

The means which I employ for supporting my brackets F F in the spring-clamps is an important and novel feature of my invention, each being adj usted to any required angle of inclination and firmly sustained in that position. In order to accomplish this object, I

make a slot G in the lower edge of the bracket near the pivotal point, which forms a runway for a spring trigger or block H. This trigger is plowed out upon both faces, leaving a projecting bed-piece I and beveled sides or pawls I 1*, which form holdingpoints to engage with the teeth on the spring-clamp to support the bracket while back of the bed-piece I. Space is provided for a spiral spring J. As thus constructed the head of the bracket is placed between the spring-leaves of the clamp, in which position it is pivoted and held in place by the thumbscrew D while the beveled points of the block and trigger enter the teeth on the edge of the spring-leaves, the block being guided by the edges of the slot of the bracket and the runways or plowed portions in the upper and lower face of the block. In this position, when the usual cross-bars or rods are placed in the notches of the brackets and loaded with the goods, theweight will be sustained by the triggers or blocks to the fullest extent or capacity of the brackets and no movement of the brackets will take place in any direction. To lower the brackets to the desired angle or incline, the trigger or block is drawn forward, releasing the points of the block from the teeth of the spring-leaves, when each bracket in turn can be. easily moved in an upward direction, and when the pressure upon the block is removed the recoil of the spring will cause the points to engage any two of the series of teeth of the spring-leaves, the points of the teeth of course being always pointed upward.

In the act of raising up the brackets the trigger-block is self-acting or automatic, for as the upward movement is made the points of the trigger will be carried up along the incline or curvature of the teeth of the springclamp, and when the extreme points of the teeth are reached the recoil of the spring in the block will cause them to enter the re cesses next above with a clicking sound. When the pressure upon the block is removed the points will spring backward by the recoil of the spring and enter any two of the series of teeth on each side of the head of the bracket, and not only are the brackets made removable on the hollow standards of my showstand, but the clamp carrying the brackets can also be moved upward or downward, as the construction of these clamps is such that when the screw is released to a certain degree the clamp around the post or standard will expand-and permit all the parts 'to be moved vertically.

In order to provide additional and independent arms or brackets for displaying goods and wares which can be moved horizontally around the post or standards of my stand, I construct of one piece of metal a clamp G, by which two or more vertical loops or sockets K K are formed by bending the strip of metal and solderingthe same at the intersecting points of the loop or socket with the clamp, as shown by dotted lines in Fig. 8. The leaves L L of this clamp projoctfrom the body part, and a thumb-screw M, constructed and operating in like manner as that of the thumb-. screws of the-brackets F F, which byscrewing' up causes the spring-leaves tobe compressed? and embrace the standard firmly, or by-turn-g ing the thumb screw in a reversed direction} the clamp can be moved u pward or downward along the post or standard at will. The loops formsockets for the bent ends of the rods N, and these rods 01'' brackets can be freely turned 5 in thesockets or loop-holes of the clamp.

Havingthus fullydescribed my invention,f what Iclaim, and desire to secure by Letters Patent,.is 1

1. Ina show-stand for the display of goods and wares in windows, a spring-clamp engaging'the standards or uprights, having projecting or extended spring-leaves with serrated or notched edges and a movable pivoted bracket or arm provided with a spring trigger or block in the head thereof, having inwardlyextendin'g'pointsadapted to engage with the teeth or notches of the spring-clamp, in the manner described.

2. In a stand for show-windows, a spring clamp having extended leaves with notched edges, a-slotted bracket or arm pivoted to the leaves, a spring trigger or block with upwardly-extending points and furrowed upon both sides, forming runways in the bracket or arm, and a spring for operating the block, in the mannerdescribed.

3. In a show-stand for windows, a spring clamp-composed of one piece of sheet metal bent to form tubes or sockets around the sprin clamp -and integral with it,in combination with the stand A, rods N, and thumbscrew M, as described.

In testimony that I claim the foregoing I have hereunto setlmy'hand andseal.

CHARLES H. GR'UENHAGEN. [n s] Witnesses:

O. W. M. SMITH, CHAS. E. KELLY. 

